TELIKOU
MS-800 Eight-Channel Main Station
6
The MS-800 uses full-duplex audio (the same as a conventional telephone line) in
which the talk and listen audio are sent and received on the same line. Thus,
when you talk on a channel, you will also hear your own voice back in the speaker
or headphones. This is called sidetone. If you are using the MS-800 with a
microphone and speaker, sidetone could cause unwanted feedback, since the
microphone may pick up your returned voice audio and reamplify it. This could
also happen if you are using a headset where the ear cushions do not completely
cover the ears, although it is probably much less likely. In either of these cases,
you should minimize the amount of sideti one.
Typically, different sidetone null settings are needed depending upon whether you
are using the gooseneck panel microphone along with the speaker or not. Use one
of the following procedures to correctly set the sidetone level controls.
A) Sidetone Adjustment Procedure for Gooseneck Microphone with
Speaker turned on:
1 Turn off all the microphones on sub-stations and belt packs.
2 Turn on the Mic switch. Set Mic select switch to panel.
3 Turn the level control to a comfortable level.
4 Speak into the microphone while turning the sidetone null control slowly back
and forth. There should be a point where your voice (and any accompanying
acoustic feedback) is the lowest. This is the null point.
B) Sidetone Adjustment Procedure for Headset:
1 Turn off all the microphones on sub-stations and beltpacks.
2 Turn on the Mic switch. Set Mic select switch to headset.
3 Turn the level control to a comfortable level by having someone talk to you from
another station.
4 Speak into the microphone while turning the sidetone null control slowly back
and forth. There should be a point where your voice (and any accompanying
acoustic feedback) is the lowest. This is the null point.
C) System Sidetone Adjustment
1 Turn off all the microphones on sub-stations and beltpacks.
2 Followed by A) and B), adjust sidetone on MS-800 main station.
